Abstract: Behind a front panel of an air purifier are formed guide paths on the right and left sides thereof. A space between the front panel and a filter unit is partitioned by a partition plate into a front panel rear space and a filter unit front space. Part of an airflow that has entered the guide path through an air intake enters the filter unit front space, and the other part thereof enters the front panel rear space. When entering the front panel rear space, the airflow takes a sharp turn at a sharp turn corner. As a result, coarse dust is separated from the airflow, and the separated coarse dust falls into a dust box.

Abstract: The present invention provides a hall-type electric propulsion that exhibits both overheating protection and operational stability, thereby simultaneously solving the problem of waste heat, which worsens with micronization, and the problem of discharge current oscillation. First, the magnetic flux distribution in ionization/acceleration channel is formed to optimize ion velocity vector, whereupon a propellant flow passage (propellant conduit) is disposed in a magnetic pole of the propulsion, or more specifically in the vicinity of the acceleration channel, and then propellant is passed through the flow passage. Thus, the magnetic pole, which is overheated by the generated plasma, can be cooled, and at the same time the propellant can be heated.

Abstract: In the case where the internal configuration is different in each memory (in the case where the correspondence information between the program address designated by the testing program and the physical address in the memory is different), the correspondence information of each memory is input from externally to the memory testing program, so that it becomes possible to use versatilely the memory testing program. Furthermore, even in the case where the internal configuration is unclear, it becomes possible to presume the internal configuration, so that it becomes possible to use versatilely the memory testing program for various memories.

Abstract: An ion generating device generates O2−(H2O)n (where n is a natural number) as negative ions and H+(H2O)m (where m is a natural number) as positive ions, and discharges those ions into the air so that airborne germs are killed through an oxidation reaction by hydrogen peroxide H2O2 or radical hydroxyl OH generated through as an active species a chemical reaction between the negative and positive ions. Satisfactory sterilization is achieved when the negative and positive ions are generated in such a way that the concentrations of the negative and positive ions are both 10,000 ion/cc at a distance of 10 cm from the point at which they are generated.

Abstract: This invention provides a catalyst for producing hydrogen gas from a mixed gas comprising dimethyl ether and water vapor or carbon dioxide gas, which comprises copper, iron, cobalt, palladium, iridium, platinum, rhodium, or nickel as an active component, and a method of producing synthesis gas or hydrogen gas in a high yield at a low temperature. By using the catalyst, fuel cell, electricity generation, reduction of iron ore and the like can be carried out.

Abstract: This invention provides a catalyst for producing hydrogen gas from a mixed gas comprising dimethyl ether and water vapor or carbon dioxide gas, which comprises copper, iron, cobalt, palladium, iridium, platinum, rhodium, or nickel as an active component, and a method of producing synthesis gas or hydrogen gas in a high yield at a low temperature. By using the catalyst, a fuel cell, electricity generation, reduction of iron ore and the like can be carried out.

Abstract: In the case where the internal configuration is different in each memory (in the case where the correspondence information between the program address designated by the testing program and the physical address in the memory is different), the correspondence information of each memory is input from externally to the memory testing program, so that it becomes possible to use versatilely the memory testing program. Furthermore, even in the case where the internal configuration is unclear, it becomes possible to presume the internal configuration, so that it becomes possible to use versatilely the memory testing program for various memories.

Abstract: A data processor testing apparatus, in which, in an access instruction executing section, an instruction string to be tested for access to cache memories as an object for execution is previously prepared, access data on a memory is set in an instruction cache memory and operand cache memory according to the instruction string to be tested, and in a BI control section, the access data set as described above is invalidated with the BI signal when the access data set in the operand cache memory is data for an address previously decided as an object for invalidation on the memory, and determination is made by a comparison control section as to whether a result of invalidation is acceptable or not.

Abstract: A pneumatic classifier having a dispersion chamber with crushing function disposed between a material supply port and a classifying chamber so that the material is sufficiently crushed and dispersed before entering the classifying chamber.

Abstract: In a classifier having a rotary classifying impeller in a casing for discharging fine powder to the outside of the casing, a leakage prevention apparatus is provided for the classifier which has a rotary seal member mounted on the upper plate of the rotary classifying impeller at the boundary portion between the rotary classifying impeller and a fine powder discharge duct. The upper portion of the rotary seal member protrudes outwardly from an opening in the top plate of the casing to separate the reduced air pressure in the discharge duct perfectly from the high pressure in the raw material dispersion chamber which is radially outside of the seal member. Furthermore, the rotary seal member can be provided with a circular groove in a J-shaped sectional structure. The end portion of this rotary seal member can also be formed into a square shape, a rounded shape or an inclined acute shape.

Abstract: In a classifier including a rotary disc provided on a lower end of a vertical rotary shaft depending from the top of a hopper-type casing, a horizontal dispersing disc is provided directly below the top of the casing, a circular collision plate is spaced from the outer circumference of the horizontal dispersing disc, and a plurality of vortex adjusting members are secured at their upper ends to the horizontal dispersing disc and at their lower ends to the rotary disc, and a leakage prevention apparatus is provided which comprises a plurality of dispersing and classifying vanes spaced from the outside of the vortex adjusting members and the inner sides of the collision plate. The dispersing and classifying vanes depend from the under surface of the horizontal dispersing disc for an appropriate length.

Abstract: A vertical mill for material such as cement raw materials, clinker, coal, or the like comprises a grinder portion which has rollers arranged to grind the material by their rolling on a rotary table, a separator means which is positioned above the grinder portion and which classifies the ground material conveyed pneumatically from the grinder portion to the separator means by the two opposite forces of centrifugal force of a rotary disk and of fluid resistance of a vortex flow, a plurality of straightening vanes which are mounted between the casing and the inner cone and which adequately regulate the direction of the fluid in the lower portion and in the upper portion in passage between the grinding portion and the separator means, and a casing outside the separator means having the appropriate shape for forming a horizontal vortex flow in the separator means. The aforesaid vertical mill structure improves the classifying efficiency of the separator means.

Abstract: A desired number of cables are drawn, along with the falling charge, into a blast furnace from its top and the forward ends of the cables are melted upon reaching the melting zone in the furnace. The length of each of the cables to its melted end is measured in accordance with the result of a voltage pulse response measurement utilizing the distributed constant circuit characteristics of the cable, and the height level of the melting zone inside the furnace is measured from the cable length by correcting it for the amount of deflection of the cable within the furnace. By measuring the cable length at each of a plurality of radial locations of the furnace, it is possible to estimate the three-dimensional shape of the upper boundary of the melting zone with a high degree of accuracy.

Abstract: An air classifier comprises a casing formed of a generally hollow cylindrical vertical casing body and an inverted conical hopper fixed to the lower wall of the casing body. A fine product outlet duct is provided at the center of the upper wall of the casing body. An air-powdered material inlet duct and a secondary air inlet duct are set in the diametrically opposite positions of the vertical wall of the casing body to project tangentially outward. A vertical rotary shaft extends through the central portion of the casing body. A rotary disc member for concurrently carrying out the dispersion and classification of a powder raw material is fitted to the lower end of the rotary shaft at a boundary between the casing body and hopper. A cage-shaped assembly of guide vanes is provided in the casing body to conduct a mixture of air and powdered material into the casing body.